Lah numbers: Difference between revisions
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Add missing parenthesis
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Thundergnat (talk | contribs) m (Add missing parenthesis) |
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L(n, n) = 1
L(n, 1) = n!
L(n, k) = ( n! *(n - 1)!) / ( k! * (k - 1)! ) / (n - k)! # For unsigned Lah numbers
''or''
L(n, k) = (-1)**n * ( n! *(n - 1)!) / ( k! * (k - 1)! ) / (n - k)! # For signed Lah numbers
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